28875861

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{6841}}^1$

素因数の和:6921

約数の個数: 24

約数和(自身を含む): 48386624

約数和(自身を除く): 19510763

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 6841, 20523, 47887, 61569, 143661, 430983, 458347, 1375041, 3208429, 4125123, 9625287, 28875861]

約数ペア:

[(1, 28875861), (3, 9625287), (7, 4125123), (9, 3208429), (21, 1375041), (63, 458347), (67, 430983), (201, 143661), (469, 61569), (603, 47887), (1407, 20523), (4221, 6841)]